Table 1 Characteristics of the 185 patients with Non Specific Pattern of Lung Function
Characteristic | 185 patients with NSP |
|---|---|
Mean ± SD (except when stated) or n | |
Sex, Female/Male | 99/86 |
Age, years | 57 ± 19 |
BMI, kg.m−2 | 26.9 ± 8.4 |
BMI ≥ 30/25 to 30/< 25 kg.m−2 | 49/55/81 |
Smoking history | |
Never smokers, n | 105 |
Ex-smokers, n | 48 |
Current smokers, n | 32 |
Pack-year, median [interquartile] | 0 [0 ; 35] |
MRC score, median [interquartile] | 2.0 [1.0 ; 2.0] |
FEV1, L | 1.96 ± 0.68 |
FEV1,% predicted [12] | 66 ± 9 |
FEV1, z-score | - 2.51 ± 0.61 |
FVC, L | 2.66 ± 0.82 |
FVC,% predicted [12] | 67 ± 9 |
FVC, z-score | - 2.58 ± 0.71 |
FEV1/FVC | 0.77 ± 0.08 |
FEV1/FVC,% predicted [12] | 99 ± 9 |
FEV1/FVC, z-score | - 0.24 ± 0.98 |
Slow inspiratory VC, L | 2.71 ± 0.79 |
Slow inspiratory VC,% predicted [13] | 76 ± 11 |
FEV1 / Slow inspiratory VC | 0.75 ± 0.08 |
FEV1 / Slow inspiratory VC, 5th percentile [13] | 0.68 ± 0.04 |
TLC, L | 5.49 ± 1.19 |
TLC,% predicted [14] | 96 ± 12 |
TLC, 5th percentile | 4.66 ± 1.07 |
FRC, L | 3.46 ± 0.92 |
FRC,% predicted [14] | 111 ± 27 |
RV, L | 2.68 ± 0.85 |
RV,% predicted [14] | 131 ± 33 |
Rawtot, kPa.s.L−1 | 0.46 ± 0.28 |
Rawtot,% predicted | 154 ± 99 |
Specific Rawtot, kPa.s | 1.60 ± 0.98 |
Specific Rawtot,% predicted | 166 ± 101 |
VA, L (n patients with measurement)* | 4.01 ± 0.90 (62) |
VA/TLC (n patients with measurement) | 0.75 ± 0.12 (62) |